- 有没有办法在Objective-C中使用带有关联值的Swift3枚举?
- 如果我开发了一个库想要给Swift3用户提供方便的API,有没有一种声明/桥接Swift3枚举带有关联值的方式在Objective-C中使用?
Int
原始值类型的枚举。
参考
enum Origin {
case Search(searchTerm: String, searchResultsPageNum: Int)
case Discovery(pageNum: Int)
}
然后在我的类中,创建了枚举属性和函数(可被Objective C看到),用于设置和获取枚举属性的值。
@objc class GameSession: NSObject
{
...
var gameOrigin: Origin?
...
let originStr = "origin"
let notSpecified = "Not Specified"
@objc func getOrigin() -> NSDictionary
{
guard let origin = gameOrigin else {
return [originStr: notSpecified]
}
switch origin {
case .Search(let searchTerm, let searchResultsPageNum):
return ["searchTerm": searchTerm, "searchResultsPageNum": "\(searchResultsPageNum)"]
case .Discovery(let pageNum)
return ["pageNum": pageNum]
default:
return [originStr: notSpecified]
}
}
@objc func setSearchOriginWith(searchTerm: String, searchResultsPageNum: Int, filtered:Bool)
{
self.gameOrigin = Origin.Search(searchTerm: searchTerm, searchResultsPageNum: searchResultsPageNum, filtered: filtered)
}
@objc func setDiscoveryOriginWith(pageNum: Int)
{
self.gameOrigin = Origin.Discovery(pageNum: pageNum)
}
}